Floating ball controller

Abstract

The utility model provides a floating ball controller, and belongs to the technical field of floating ball controllers. The problem that a lower positioning sleeve of an existing floating ball controller is inconvenient to install is solved. The floating ball controller comprises a shell, a hanging rod, a floating ball and a lower positioning sleeve, the top of the hanging rod is arranged in the shell in a penetrating mode, the hanging rod is movably sleeved with the floating ball, the lower positioning sleeve is made of elastic materials, a plurality of anti-disengaging blocks protruding outwards are arranged on the outer side wall of the hanging rod, and all the anti-disengaging blocks are arranged at intervals in the axial direction of the hanging rod. The lower positioning sleeve can cross the anti-falling block from bottom to top in the axial direction of the suspender to be arranged on the suspender in a sleeving mode, and the anti-falling block can prevent the lower positioning sleeve from falling off from the suspender. The floating ball controller has the advantages that the lower positioning sleeve is convenient to install, and the lower positioning sleeve cannot fall off from the suspender.

Description

Technical Field

[0001] The utility model belongs to the technical field of float controllers and relates to a float controller. Background Art

[0002] The float controller is a simple and commonly used liquid level control device, which is widely used in water towers, pools, industrial storage tanks and other occasions where automatic liquid level control is required. Its working principle is based on the buoyancy principle and is mainly composed of float, lever, magnet, reed switch and other components.

[0003] Existing float controllers, for example, Chinese patent literature discloses an electric pump float controller [patent number: 201920113593.0; application publication number: CN209761696U], which includes a shell, in which a rocker arm, a magnet, a switch bracket and a micro switch are arranged; it also includes a suspension rod arranged in a vertical direction, the top of the suspension rod is in the shell, a float is sleeved in the middle of the suspension rod, and a positioning block is sleeved at the bottom of the suspension rod, and the positioning block is below the float; a through hole is opened in the middle of the positioning block in the vertical direction, and the diameter of the through hole is slightly larger than the outer diameter of the lower part of the suspension rod, the positioning block can move up and down along the suspension rod, and a transversely arranged threaded through hole is opened on the side wall of the positioning block, and screws matching the threaded through hole are also included, and the positioning block is fixed to the suspension rod by the screws.

[0004] The float controller of this structure needs to use a screwdriver to turn the screw to insert the tip of the screw into the suspension rod to achieve the positioning of the positioning block, which is relatively laborious and inconvenient to fix the positioning block. However, when the screw is turned by an electric screwdriver to insert the tip of the screw into the suspension rod, the force is difficult to control, which may damage the suspension rod, break the suspension rod, and cause the positioning block to fall off. Summary of the invention

[0005] The utility model aims at the above problems existing in the prior art and proposes a float controller, which solves the technical problem of how to facilitate the installation of the lower positioning sleeve and prevent the lower positioning sleeve from falling off the suspension rod.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a float controller, including a shell, a suspension rod, a float and a lower positioning sleeve, the top of the suspension rod is inserted into the shell, and the float is movably sleeved on the suspension rod, characterized in that the lower positioning sleeve is made of elastic material, and the outer side wall of the suspension rod is provided with a plurality of anti-dropping blocks protruding outward, all of the anti-dropping blocks are arranged at intervals along the axial direction of the suspension rod, and the lower positioning sleeve can pass over the anti-dropping blocks from bottom to top along the axial direction of the suspension rod and be sleeved on the suspension rod, and the anti-dropping blocks can prevent the lower positioning sleeve from falling off the suspension rod.

[0007] The lower positioning sleeve is elastic and can be deformed. During installation, the lower positioning sleeve is inserted from the bottom of the suspension rod, and external force is applied to move the lower positioning sleeve from bottom to top along the axial direction of the suspension rod, so that the lower positioning sleeve passes over the anti-falling block after being squeezed and deformed due to the external force. Since the anti-falling block is protruding outward, the lower positioning sleeve cannot move in the opposite direction to pass the anti-falling block without applying external force to the lower positioning sleeve, so that the lower positioning sleeve is easy to install and the lower positioning sleeve will not fall off the suspension rod.

[0008] In the above-mentioned float controller, the bottom of the anti-slip block has a guide surface arranged obliquely upward and outward, and the lower positioning sleeve can pass over the anti-slip block along the guide surface. The setting of the guide surface plays a guiding role, so that the anti-slip block can pass over the anti-slip block more effortlessly along the guide surface.

[0009] In the above-mentioned float controller, the top of the anti-dropping block has an anti-dropping surface arranged along the radial direction of the suspension rod, and the lower positioning sleeve can abut against the anti-dropping surface. The anti-dropping surface is provided for the lower positioning sleeve to abut against, so that the anti-dropping block can prevent the lower positioning sleeve from falling off the suspension rod.

[0010] In the above-mentioned float controller, all the anti-drop blocks are divided into two rows along the axial direction of the suspension rod, and the two rows of anti-drop blocks are symmetrically arranged. This structure improves uniformity, makes it convenient for the lower positioning sleeve to pass over the anti-drop blocks, and also prevents the lower positioning sleeve from falling off.

[0011] In the above-mentioned float controller, the lower positioning sleeve has a through hole, the suspension rod passes through the through hole, and the hole diameter of the through hole is slightly smaller than the outer diameter of the suspension rod. This structure allows the lower positioning sleeve to elastically deform and wrap the suspension rod tightly, so that the lower positioning sleeve will not move, thereby improving the stability of the lower positioning sleeve, which is slightly smaller than, for example, 1mm larger in diameter.

[0012] In the above-mentioned float controller, the lower positioning sleeve is made of rubber material or nylon material.

[0013] In the above-mentioned float controller, the suspension rod is also fixedly connected with an upper positioning sleeve, and the upper positioning sleeve is located above the float. After the float moves upward, it abuts against the upper positioning sleeve and can drive the suspension rod to move upward. In this structure, the float has sufficient buoyancy, and the float can lift the upper positioning sleeve to drive the suspension rod to move upward.

[0014] In the above-mentioned float controller, the housing has a guide cylinder, a micro switch and a swing arm, the top end of the suspension rod is inserted into the guide cylinder, and the top end of the suspension rod is fixedly connected to a first magnet, one end of the swing arm is hinged to the housing, and the other end is fixedly connected to a second magnet, the second magnet is located directly above the guide cylinder, and the first magnet can attract and pull the second magnet to swing the swing arm after moving upward, and the swing arm swinging can turn on the micro switch. The suspension rod moves along the guide cylinder to move the first magnet in a set direction, the first magnet is located inside the guide cylinder, and the second magnet is located outside the guide cylinder, so that the suction force of the first magnet and the second magnet is moderate.

[0015] In the above-mentioned float controller, the housing is also fixed with a limit protrusion, which is located directly above the second magnet, and the second magnet can abut against the limit protrusion. The limit protrusion plays a limiting role, preventing the second magnet from deviating from the set position and making the second magnet too far away, ensuring that the first magnet can attract and pull the second magnet, and ensuring that the swing arm can swing.

[0016] A float controller includes a housing, a suspension rod and a float, wherein the top of the suspension rod is inserted into the housing, and the float is movably sleeved on the suspension rod. The float controller also includes a positioning nut, wherein the bottom of the suspension rod has an external thread, and the positioning nut is fixedly connected to the bottom of the suspension rod by a threaded connection, and the float moves downward and can abut against the positioning nut. By rotating the positioning nut through the threaded connection, the position of the positioning nut can be changed, and the lowest position of the float can be controlled.

[0017] Compared with the prior art, the float controller provided by the utility model has the following advantages:

[0018] 1. The float controller utilizes the elasticity and deformation characteristics of the lower positioning sleeve to enable the lower positioning sleeve to pass over the anti-dropping block, and the anti-dropping block can prevent the lower positioning sleeve from falling off, making the lower positioning sleeve easy to install and preventing it from falling off from the suspension rod.

[0019] 2. The float controller uses the principle of opposite attraction between the first magnet and the second magnet to make the swing arm swing to drive the micro switch to turn on, and the design is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a sectional view of the overall structure of the first embodiment of the float controller.

[0021] Figure 2 It is a structural schematic diagram of an anti-dropping block of a first embodiment of the float controller.

[0022] Figure 3 It is a schematic diagram of the structure inside the shell of the first embodiment of the float controller.

[0023] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the float controller.

[0024] In the figure, 1, shell; 2, suspension rod; 3, float; 4, lower positioning sleeve; 41, through hole; 5, anti-slip block; 51, guide surface; 52, anti-slip surface; 6, guide cylinder; 7, micro switch; 8, swing arm; 9, first magnet; 10, second magnet; 11, limit protrusion; 12, upper positioning sleeve; 13, positioning nut. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Embodiment 1

[0027] like Figure 1 , Figure 3 As shown, the float 3 controller includes a housing 1, a suspension rod 2, a float 3, a lower positioning sleeve 4, a guide cylinder 6, a micro switch 7, a swing arm 8, a first magnet 9, a second magnet 10 and a limit protrusion 11.

[0028] The guide cylinder 6, the micro switch 7 and the swing arm 8 are all located in the housing 1. The top end of the suspension rod 2 is inserted into the guide cylinder 6, and the top end of the suspension rod 2 is fixedly connected to the first magnet 9. One end of the swing arm 8 is hinged to the housing 1, and the other end is fixedly connected to the second magnet 10. The second magnet 10 is located just above the guide cylinder 6. The limiting protrusion 11 is fixedly connected to the top of the housing 1. The limiting protrusion 11 is located just above the second magnet 10, and the second magnet 10 can abut against the limiting protrusion 11. After the first magnet 9 moves upward, it can attract and pull the second magnet 10 to make the swing arm 8 swing, and the swing of the swing arm 8 can turn on the micro switch 7.

[0029] The float 3 is movably sleeved outside the suspension rod 2, and the lower positioning sleeve 4 is made of elastic material. In this embodiment, the lower positioning sleeve 4 is made of nylon material. In actual production, the lower positioning sleeve 4 can be made of rubber material.

[0030] In this embodiment, there are sixteen anti-drop blocks 5 protruding outward on the outer wall of the suspension rod 2. All the anti-drop blocks 5 are arranged at intervals along the axial direction of the suspension rod 2. The sixteen anti-drop blocks 5 are divided into two rows along the axial direction of the suspension rod 2. The two rows of anti-drop blocks 5 are symmetrically arranged. In actual production, the number of anti-drop blocks 5 can be eight or thirty-six.

[0031] The lower positioning sleeve 4 has a through hole 41 therethrough, and the diameter of the through hole 41 is slightly smaller than the outer diameter of the suspension rod 2. Figure 2As shown, the bottom of the anti-slip block 5 has a guide surface 51 that is arranged obliquely upward and outward, the suspension rod 2 passes through the through hole 41, and the lower positioning sleeve 4 can pass over the anti-slip block 5 along the guide surface 51. The top of the anti-slip block 5 has an anti-slip surface 52 that is arranged along the radial direction of the suspension rod 2, and the lower positioning sleeve 4 can abut against the anti-slip surface 52.

[0032] An upper positioning sleeve 12 is also fixedly connected to the upper end of the suspension rod 2. The upper positioning sleeve 12 is located above the floating ball 3. After the floating ball 3 moves upward, it abuts against the upper positioning sleeve 12 and can drive the suspension rod 2 to move upward.

[0033] During installation, the bottom of the suspension rod 2 is passed through the through hole 41 of the lower positioning sleeve 4, and an external force is applied to make the lower positioning sleeve 4 abut against the guide surface 51 and deform the lower positioning sleeve 4, so that the lower positioning sleeve 4 passes over the guide surface 51 and the lower positioning sleeve 4 passes over the anti-dropping block 5. According to actual needs, several anti-dropping blocks 5 can be selected to be passed over to locate the position of the anti-dropping block 5.

[0034] Embodiment 2

[0035] like Figure 4 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment. The difference is that, in this embodiment, the float controller includes a shell 1, a suspension rod 2, a float 3 and a positioning nut 13. The top of the suspension rod 2 is inserted into the shell 1, and the float 3 is movably sleeved outside the suspension rod 2. The bottom of the suspension rod 2 has an external thread. The positioning nut 13 is fixedly connected to the bottom of the suspension rod 2 by a threaded connection. The float 3 can move downward and rest against the positioning nut 13.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0037] Although this article uses more terms such as housing 1, suspension rod 2, float 3, lower positioning sleeve 4, through hole 41, anti-slip block 5, guide surface 51, anti-slip surface 52, guide cylinder 6, micro switch 7, swing arm 8, first magnet 9, second magnet 10, limit convex block 11, upper positioning sleeve 12, positioning nut 13, etc., it does not exclude the possibility of using other terms. The use of these terms is only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A float controller, comprising a housing (1), a suspension rod (2), a float (3) and a lower positioning sleeve (4), wherein the top of the suspension rod (2) is inserted into the housing (1), and the float (3) is movably sleeved on the suspension rod (2), characterized in that: The lower positioning sleeve (4) is made of an elastic material. The outer side wall of the suspension rod (2) is provided with a plurality of anti-slip blocks (5) protruding outward. All the anti-slip blocks (5) are arranged at intervals along the axial direction of the suspension rod (2). The lower positioning sleeve (4) can pass over the anti-slip blocks (5) from bottom to top along the axial direction of the suspension rod (2) and be sleeved on the suspension rod (2). The anti-slip blocks (5) can prevent the lower positioning sleeve (4) from falling off the suspension rod (2).

2. A float controller according to claim 1, characterized in that: The bottom of the anti-slip block (5) has a guide surface (51) arranged obliquely upward and outward, and the lower positioning sleeve (4) can pass over the anti-slip block (5) along the guide surface (51).

3. A float controller according to claim 1, characterized in that: The top of the anti-slip block (5) has an anti-slip surface (52) arranged radially along the suspension rod (2), and the lower positioning sleeve (4) can abut against the anti-slip surface (52).

4. A float controller according to claim 1, 2 or 3, characterized in that: All the anti-slip blocks (5) are divided into two rows along the axial direction of the suspension rod (2), and the two rows of anti-slip blocks (5) are symmetrically arranged.

5. A float controller according to claim 1, 2 or 3, characterized in that: The lower positioning sleeve (4) has a through hole (41) therein, the suspension rod (2) passes through the through hole (41), and the diameter of the through hole (41) is slightly smaller than the outer diameter of the suspension rod (2).

6. A float controller according to claim 1, 2 or 3, characterized in that: The lower positioning sleeve (4) is made of a rubber material or a nylon material.

7. A float controller according to claim 1, 2 or 3, characterized in that: The suspension rod (2) is also fixedly connected with an upper positioning sleeve (12), and the upper positioning sleeve (12) is located above the floating ball (3). After the floating ball (3) moves upward, it abuts against the upper positioning sleeve (12) and can drive the suspension rod (2) to move upward.

8. A float controller according to claim 1, 2 or 3, characterized in that: The shell (1) comprises a guide cylinder (6), a micro switch (7) and a swing arm (8); the top end of the suspension rod (2) is inserted into the guide cylinder (6), and the top end of the suspension rod (2) is fixedly connected to a first magnet (9); one end of the swing arm (8) is hinged to the shell (1), and the other end is fixedly connected to a second magnet (10); the second magnet (10) is located directly above the guide cylinder (6); when the first magnet (9) moves upward, it can attract and pull the second magnet (10) to make the swing arm (8) swing; the swing of the swing arm (8) can turn on the micro switch (7).

9. A float controller according to claim 8, characterized in that: A limiting protrusion (11) is also fixedly connected to the housing (1), and the limiting protrusion (11) is located directly above the second magnet (10), and the second magnet (10) can abut against the limiting protrusion (11).

10. A float controller, comprising a housing (1), a suspension rod (2) and a float (3), wherein the top of the suspension rod (2) is inserted into the housing (1), and the float (3) is movably sleeved on the suspension rod (2), characterized in that: The float controller also includes a positioning nut (13). The bottom of the suspension rod (2) has an external thread. The positioning nut (13) is fixed to the bottom of the suspension rod (2) by threaded connection. The float (3) can abut against the positioning nut (13) when moving downward.

Images